Calk-plate for boots and shoes



J. B. WEIR.

Salk-Plate for Boats and Shoes.

Patented Mar. 23,1880.

WITNESSES ATTORNEYS.

UNITED STATES PATENT OFFICE.

JOHN B. WEIR, ()F OTSEGO LAKE, MICHIGAN.

CALK-PLATE FOR BOOTS AND SHOES.

SPECIFICATION forming part of Letters Patent No. 225,897, dated March 23, 1880,

I Application filed January 12, 1880.

To all whom 1' 6 may concern Be it known that 1, JOHN B. W'EIR, of Otsego Lake, in the county of Otsego and State of M ichi gan, have invented new and Improved Galk-Plates for Boots and Shoes, of which the following is a specification.

The object of my invention is to provide a new and improved calk-plate for boots and shoes which is simple in construction and eii'ective in use.

The invention consists of a metal plate covering the heel and sole, provided with calks on the lower side and lugs, which fit into corresponding recesses in the sole 011 the upper side. It is secured to the heel of the boot or shoe by means of a countersunk screw, which takes in a threaded plate and socket in the heel.

In the accompanying drawings, Figure 1 represents a side elevation of a shoe provided with my improved calk-plate. Fig. 2 is a longitudinal sectional elevation of the same. Fig. 3 is a plan view of the upper side of the call:- plate. Fig. c is a plan view of the recessplates fastened to the under side of the sole. Fig. 5 is a plan view of the plate fastened to the under side of the heel.

Similar letters of reference indicate corresponding parts.

The plate A consists of the part B under the sole of the boot or shoe, and the part 0 under the heel of the same, which parts are riveted to each other or united in some other suitable manner at l). The under side of the plate A is provided with numerous calks or spikes E, which may be distributed in an ysuitable manner, and may be riveted or screwed into the plate A, or may be secured to the same in any other suitable manner.

The plate A may be made of any desired metal, malleable iron being preferred, for if this metal is used I can cast a small socket for each calk, thus giving them a firmer hold.

The upper side of the sole part B of the plate A is provided with one or more lugs, F, the under side of which is beveled upward and forward, forming a point at the forward end of the lug.

The sole G has a number of longitudinal recesses, H H, corresponding in location to the lugs F, into which the lugs can pass. The

sole is provided with a metal plate, I, having longitudinal slots J, corresponding to the recesses, or it is provided with a slotted plate for each recess.

The heel M is provided with a metal plate, K, countersunk in the center, and having a threaded socket, L, of greater or less thickness attached thereto or made integral with it.

The heel part (J of the plate A is provided with an aperture, N, and is also countersunk at the center, corresponding to the center of the plate K. The length of the plate A can be adjusted to the length of the shoe or boot by separating the parts 0 and B at D, and then reconnecting them so as to have the desired length.

The plates I and K are to be countersunk in the sole and heel, respectively, and can be fastened to the same by means of rivets, or in any other suitable manner.

The sole of the boot or shoe may be made of one piece of metal and recessed to suit the lugs F.

The calk-plate is applied in the following manner: If the plate is not in use, the screw Q is screwed into the socket L to keep the dirt out of the same. As the plate K is countersunk, the head of the screw does not project beyond the lower surface of the heel, and therefore is not inconvenient to the person. To fasten the plate A, the screw Q is first re moved, the lugs F F are passed into their corresponding recesses H H, and the heel part 0 of the plate A is pressed snugly against the heel M. The screw Q is passed through the aperture N into the socket L and screwed down tight, the head entering into the countcrsunk part of the heel part (J, which, in turn, passes into the countersunk center part of the plate K. The plate A is now rigidly fastened to the boot or shoe, for the lugs F F cannot pass out of their recesses unless the partB of the plate A is raised sufficiently to permit the part at l) to clear the heel; but the screw Q prevents this, and the heel-bend a is pressed against the heel and prevents a slipping of the plate A and gives a firm hold. As the lugs F F are beveled, they will press the plate A tighter to the sole as the strain increases.

This calk-plate is especially adapted for raftsmen and persons having similar occupations.

The calks E will be preferably made of steel, but can be made of any other suitable material.

The plates can be made or cast in one piece,

in several sizes, instead of being made of two adjustable parts.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The heel M, constructed with a screworifiee, K, in combination with the recessed sole G, the plate A, having lugs F, and a fasteningscrew, Q, substantially as herein shown and described, and for the purpose set forth.

2. The plate A, constructed with a heeli5 bend, a, substantially as herein shown and described, whereby, when the plate is applied to the sole and the lugs are pushed forward into their recesses, the rear part of the plate A may be locked by the heel-bend a against 20 N. R. GILBERT, A. M. HILTON. 

